Pocket-knife.



R. L. GUTHRIE.

POCKET KNIFE.

APPLIQATION FILED MAIL-11, 1908.

Patented Nov. 10,1908.

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noses/r L. GUTHRIE, 'oF SKAGWAY, DISTRICT oF-ALA'sKA.

iOCICE'If-KNIEE.

Specification of LetterslPatent.

' Patented Nov. 10. 1908.

Application filed March 11, 1908. Serial No. 420,446.

To all w/Lom it may concern:-

Be it known that I, ROBERT L. Gro'rrinre,

a citizen of the United States, and a resident of Skagway, in theDistrict of Alaska,

have invented an Improvement in Pocket- Knives, of-which the followingis a full, clear, and exact description. The invention relatesto pocketknives, and its object is to provide a. new and improved handle forinterchangeablyholding all sorts of knife blades,

screw drivers, manicure implements, etc., and arranged to permitconvenient and quick removal of a tool and the insertion of another. 1 1

The invention consists of novel features and parts and combinationsofthe same,

which will be more fully described herein-'' blades; Fig. 3 is anenlargedtransverse see- I tion of the improvement on the line 33 of Fig.1; Fig. 4 is a similar view of the same on the line l--4: of Fig. 1;Fig. 5 is a cross sectionof a modified form of the improvement, taken011 the line 5-5 of Fig. 6;"Fig.

6 is a side elevation of the same, parts being in section; F 1g. 7 1sajsrde elevatlon of a modified form of the improvement, parts beingbroken out; Fig. 8 1s a similar view of another modified form. of theimprovement, parts being broken out, and Fig. .9 is an enlarged crosssection of the improvement shown in Fig. 7 the section being on the line99 of Fig. 7.

The handle'A, as illustrated in Figs. 1, 2 and 3, is provided near eachend with a removable pivot B, on which is mounted to swing the heel G ofa tool C, in the form of a-knit'eblade or other implement pressed on atthe heel by the free end of a spring or springs D attached to the handleA in the usual manner. The spring or springs D are provided withtransverse apertures D adapted to at the time the free end of the s ringD is raised by the heel C of the tool as shown in Fig. 1, that is, whenthe tool C has been swung into a half open position and stands beengaged by a pin or key E.

at right angles'to' the handle A, ts indicated in Fig. 1. Now when thefree end of the spring D is raised them its opening D. is

above the back of th'e ha'ndle A, and consequently when-thepin or key'Eis now passed through the hole D then the pinor key rests on the back ofthe handle A and thus holds. the spring' D against closing when swingingthe tool G into a complete open position. Whenthe tool G is swung intothe open position, then the operator can eonveniently remove the pivot Bwith a view' to" detach the tool C and allow the use of 'another toolconstructed with a heel similar to "the one of the tool C, shown anddescribed.

Thissecond'tool can be; placed in position on the handle and engaged bythe pivot B, to allow theo ,erator to swing this tool into a right-angldie A, to engage thefree' end of the'sp position melative to the banringt D and allow the user to remove the'pin or I I I key E When thistakesplace, the, tool C'is again spring-pressedandcan be used for its;

legitimate purposes.

The jpivotB is preferably in the -form of a' screw rod screwing in thehandle A'and having its middle portion non-threaded for the tool .C to;'swing on, as. plainly indicated in Fig; The ends of the pivot B are boththreaded to screw in the sides or. jaws of the handle A, each end having}ajs lot forfthe application of'a screw. :1

'"driver, to screw the pivot in screw itfrom either end. In order tostrengthen the knife handle,

place or to un use is made of asolid rivet F, adjacent to)" the pivot Band rigidly connecting the sides or jaws of the handles with eachother.-

The blade C is provided with a cut-out portion G to fitthei rivetlF whenthe blade is clased.

As. illustrated in Figs, and the handle A is provided with transverseapertures A for the insertion of a pin or key E, ed to engage the underside of the or springs D at the time the free end thereof is raised by.the heel C of the tool C swung into a right-angled to'the handle A. Thusthe free end'of the spring D is held in a raised position, to al lowconvenient removal of the pivot B from the handle A, witha View todetach the tool C and then replacethe latter by another tool, aspreviously explained.

' In the modified form'shown in Figs. 7 and 9. two knife blades H, H arefulcrumed on the same pivot I screwing in the jaws ofthe adaptspringposition relative handle J, the heels H" of thejknife blades beingpressed on bysprings K attached to the handle J. The-springs K can belocked when raised by the heels H, by the use of a transverse pin Linserted through registeringapertures J in the sides of the handle J andinthe division plate J The solid-rivet Nat each end of the'handle J,serves-to re inforce the handle and is adaptedto be engaged by recessesN, formed on the knife blades H. v

In the modified formillustrated in-Fig. 8, the spring 0 is locked whenraised'by the heel ]E of the knifeblade P, by a'pin Q, passing throughregistering a ertures 1n the handle R and the said spring The handle isreinforced at each end bytlie solid rivet S,

ada ted to be engaged bya-recess I in the. kni e blade P,"wh1ch latteris mounted to swing on the screw pivot P similar'to the pivots abovedescribed.

From the foregoing it' will seen that'in all cases use is madepof aremovable screw pivot, a solid reinforcing rivet and a-key or pinengaging the-handle and the spring, for holding the latteritemporarilyin a raised position, to allow ,convenient removal of the tool and thereplacing of the same by another-L.

In practice it prove (if advantage to,

mark .the handle and'the. interchangeable tools with correspondingcharacters, to allow a wide range of interchangeable tools with the samehandle. e

The handle shown and described is very simpleand durable inconstruction, and re.-

quires but little s'killin interchanging tools of various kinds, havingthe same kind of heel as the one shown and described. Thus -dull knifeblades can bereadily interchanged for sharppnes, and other tools, suchas screw driver'shanks, may be attachedto the handle in lace of a knifeblade.

- avin'g thus described my invention, I

claim as new and-desire to secure byLetters; 1 Patent:

pocket knife, comprising a handle, a

1. A blade, a springheldon the handle and ada tved to ress the saidblade, and moved by t e latter into a raised positiomand independentn'ieans'fonlocking the spring in the raised position.

2, A pocket knife, comprising a tool blade, a handle having a removablepivot for. the tool: blade to swing on, a spring on the said handle andada ted to engage andpress the heel'of the sai tool blade, the latterbeing adapted to raise the spring, and independent means-for holding thespring in the raised position.

3. A pocket knife, comprising a tool'blade, a-.handle .having aremovable pivot for the tool blade to swing on,-a spring on the saidhandle and adapted to engage and press the heel of thesaid tool blade,the latter being adapted to raise the spring, and a 'pinfadapted to holdthe spring in the raised position. 1-

4. A ocket knife, comprising a tool blade,

a hand ejhavingaremovable pivot for the tool bladetoswing on, a springon the said adapted to raise the spring, and a pin for ention.

' v5. A- device of theclass described comprisinga handle, apivot, a toolmounted on the 7.05 handlearid ada ted to engage and press the heel ofthe sai tool blade, the latter being.

"gagement with the handle and with, the said a spring, to holdthe latterin the raised posi sald pivot, a'..spring ressing the said tool,-

and a solid rivet rigi y connectin the sides ofthe handle'wi'th each.other a jacent to the saidipivot, the said tool having a recess.

for engagin theIsaid solid. rivet when the tool is close or foldedin'the handle.

6. :A device of the class described, comprising a.hand;le', a tool, .thehandle. and the toolbeing provided with registering openings, and ,apivot traversing the openings, said pivot having its ends screwthreaded,

and its central portion lain for the. tool to swing u n the screw treadedendsjbeing threade into the handle. 4

'In testimonywhereof I have signed my name to this specification in thepresence of

